ADR-115 §3.12 keystone. Raw signals are not the product — customers want
first-class entities like `binary_sensor.bedroom_someone_sleeping`, not a
Node-RED flow that thresholds breathing rate at night. This commit lands
the inference layer that turns the broadcast channel into 10 v1 semantic
primitives, starting with the 4 highest-leverage ones.
Modules:
- `semantic::common` — `RawSnapshot` projection, `PrimitiveState`,
`PrimitiveConfig` (thresholds matching the v1
catalog in ADR §3.12), `in_window` for time-gated
primitives, `Reason` explainability struct.
- `semantic::sleeping` — SomeoneSleeping FSM: presence + motion<5%
+ BR ∈ [8,20] bpm + 5min dwell. Exit on
presence-drop (immediate) or motion>15%
for 30s.
- `semantic::room_active` — motion >10% in 30s window → ON. Exit on
presence-drop or 10min idle.
- `semantic::bathroom` — presence + zone tagged as bathroom. Safe
in privacy mode (no biometrics in the
derivation).
- `semantic::no_movement` — presence + motion<1% for 30min → ON.
Safety-check primitive for aging-in-place.
- `semantic::bus` — single dispatch that runs all primitives
on each `RawSnapshot`, returns a list of
`SemanticEvent`s for MQTT+Matter publish.
Every primitive has:
- Warmup suppression (60s default, §3.12.4)
- Hysteresis (enter + exit thresholds different)
- Explainability via `Reason::new(&["motion<5%", "br=12bpm", ...])`
- Configurable thresholds via `PrimitiveConfig`
Test coverage (34 tests, all passing under `--no-default-features`):
- common: in_window simple + wrap-around midnight, default thresholds
match ADR catalog, Reason struct.
- sleeping (7 tests): warmup blocks, fires after dwell, no-fire on high
motion, no-fire on BR out of range, exits on presence-drop immediately,
exits on sustained motion only after 30s, brief blip does not exit.
- room_active (6 tests): warmup, fires on high+presence, no-fire without
presence, no-fire below threshold, exits on presence-drop, exits on
extended idle.
- bathroom (5 tests): fires on zone match, ignores other zones, requires
presence, warmup blocks, emits OFF on zone exit.
- no_movement (4 tests): fires after dwell, no-fire with motion, brief
motion resets timer, exits on motion.
- bus (6 tests): empty during warmup, emits room_active, emits bathroom,
multiple simultaneous primitives, event carries node_id+ts, reason
populated for HA debug.
Total cargo test count now:
cli: 6 + mqtt: 45 + semantic: 34 = 85 tests passing
P4.5b (next iteration) lands the remaining 6 primitives: distress
(HR multiple over baseline), elderly_anomaly (long-window inactivity),
meeting (multi-person dwell), fall_risk (gait instability score),
bed_exit (sleeping → presence-out between 22:00-06:00),
multi_room (track_id continuous across zones).
Refs #776.
Co-Authored-By: claude-flow <ruv@ruv.net>
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